CN109371826A - A kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams - Google Patents
A kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams Download PDFInfo
- Publication number
- CN109371826A CN109371826A CN201811417855.9A CN201811417855A CN109371826A CN 109371826 A CN109371826 A CN 109371826A CN 201811417855 A CN201811417855 A CN 201811417855A CN 109371826 A CN109371826 A CN 109371826A
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- China
- Prior art keywords
- slideway
- slide
- sliding block
- steel
- support
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
Abstract
The invention discloses a kind of slideway type dampers set up for bridge spanning the sea Simply-supported Steel Beams, including support and sliding block, support is fixed on top of bridge pier, upper end is open, inside is equipped with slide, it is connected between the bottom surface of the slide and the support by spring, two sides are connect by spacer pin with the support, and the top surface of the slide is equipped with the slideway for girder steel positioning；Sliding block is fixed on steel beam bottom to be set up, and the bottom surface of the sliding block is spherical surface, is adapted to the radius of the slideway, with the change in location of girder steel to be set up, with the ramps contact or disengaging.The present invention, structure is simple, easy to process；Beam body is in the minimum point of slideway automatically when falling beam, guarantees that girder steel is accurately in place, has automatic positioning function, and raising falls beam accuracy；Contact friction energy-dissipating of the sliding block with slide, spring buffer function be able to achieve energy consumption during falling beam, buffer function, effectively improve steel girder erection efficiency.
Description
Technical field
The present invention relates to technical field of bridge construction, and in particular to a kind of slideway set up for bridge spanning the sea Simply-supported Steel Beams
Type damper.
Background technique
In the case where country greatly develops the background of ocean project, the construction of China's Oversea bridge is in the stage of flourishing, such as
Built Construction of Hangzhou Bay Cross-sea Bridge, tall building Zhang bridge, port Zhuhai and Macao bridge and dual-purpose bridge of iron etc. is total in the Pingtan straits built.Across
In extra large bridge construction process, to reduce operation on the sea, Simply-supported Steel Beams construct while being that batch production is whole opening prefabricated, and bridge site crane barge is set up
Method.It sets a roof beam in place difference with inland river, in bridge spanning the sea Simply-supported Steel Beams erection process, needs in face of environment such as complicated wind, wave, streams
Factor.These factors are the space oscillations of girder steel when causing lifting, increase construction safety hidden danger, cause girder steel and bridge pier when falling beam
Collision.It therefore how to be to need to be badly in need of problems faced to buffer shock-absorbing is carried out when falling beam.
Crane barge is generallyd use in the prior art, when setting up using crane barge to girder steel, since hoisting height is larger, generally
It is lower in the vibration frequency of 40m or more, girder steel, in 0.16Hz hereinafter, if using traditional tuned mass damper to girder steel
Vibration is controlled, and the spring rate needed is lower, will appear surrender in vibration processes；And in science of bridge building and architectural engineering
In the viscous damper that is widely used, without installation fulcrum in hoisting process, therefore tuned mass damper and viscous damper
It is difficult to apply to practical steel girder erection.
In view of this, being badly in need of researching and developing a kind of buffer shock-absorbing structure raising erection efficiency and erection essence for girder steel steelframe
Degree.
Summary of the invention
The technical problem to be solved by the present invention is to existing girder steel buffer damping structure, there are inconvenient, Adjustment precisions
Low problem.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that providing a kind of for bridge spanning the sea freely-supported
The slideway type damper of steel girder erection, comprising:
Support is fixed on top of bridge pier, and upper end is open, and inside is equipped with slide, between the bottom surface of the slide and the support
It is connected by spring, two sides are connect by spacer pin with the support, and the top surface of the slide is equipped with the cunning for girder steel positioning
Road, the slideway are arc-shaped；
Sliding block is fixed on steel beam bottom to be set up, and the bottom surface of the sliding block is spherical surface, is adapted to the radius of the slideway,
With the change in location of girder steel to be set up, with the ramps contact or disengaging.
In another preferred embodiment, the radius of the slideway is when falling beam between boom suspension centre and girder steel suspension centre
Linear distance.
In another preferred embodiment, the spring is multiple, is evenly distributed on the bottom of the slide.
In another preferred embodiment, the both ends of the slide are equipped with link block, and the spacer pin is arranged described
Between link block and the support.
In another preferred embodiment, the spherical diameter of the sliding block is 1m, and the diameter of the slideway is 40m, institute
The rigidity for stating spring is 12kN/m.Compared with prior art, the present invention has the following advantages:
1. structure is simple, easy to process；
2. falling the minimum point that beam body when beam is in slideway automatically, guarantees that girder steel is accurately in place, there is automatic positioning function, mention
Height falls beam accuracy；
3. contact of the sliding block with slide rubs, the elasticity of spring is able to achieve buffering, energy consumption function during putting beam, effectively
Improve steel girder erection efficiency.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention provides a kind of slideway type dampers set up for bridge spanning the sea Simply-supported Steel Beams, can be realized and put beam
Automatic positioning, and buffering, energy consumption function during beam are put, effectively improve steel girder erection efficiency.It is attached below with reference to specification
Figure and specific embodiment are described in detail the present invention.
As shown in Figure 1, a kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams provided by the invention, fixed
On bridge pier, including support 4 and sliding block 1.
Support 4 is fixed on top of bridge pier, and upper end is open, and inside is equipped with slideway, passes through bullet between the bottom surface and support 4 of slide 2
Spring 3 connects, and two sides are connect by spacer pin 5 with support 4, and the top surface of slide 2 is equipped with the slideway for girder steel positioning, and slideway is circle
Arc.Sliding block 1 is fixed on steel beam bottom to be set up, and the bottom surface of sliding block 1 is spherical surface, is adapted to the radius of slideway, with wait set up
The change in location of girder steel, with ramps contact or disengaging.
The course of work of the invention are as follows:
In girder steel decentralization process, due to the influence of external wind, wave, stream, girder steel will generate percussion to bridge pier, and sliding block
1 is down in slideway, and realizes automatic positioning, when sliding block 1 is with ramps contact, is consumed energy by the friction of contact surface, while bullet
Spring 3 is in running order, and vibratory impulse caused by girder steel can be effectively relieved, and realizes energy consumption, buffer function, is conducive to reduce steel
Vibration of beam, while reducing the collision between girder steel and bridge pier.
The radius of slideway is linear distance when falling beam between suspension centre and girder steel suspension centre, and consistent with sliding block radius, therefore,
Minimum point when girder steel transfers in place on meeting automatic centering slideway is realized automatic accurate in place.
Spring 3 be it is multiple, be evenly distributed on the bottom of slide 2.The setting of spring 3 may be configured as uniformly arranging, multiple bullets
Spring 3 can guarantee the equilibrium of stress, and improve locating effect with slideway collective effect.
The both ends of slide 2 are equipped with link block, and spacer pin 5 is arranged between link block and support 4.Slide 2 is by sliding block 1
Contact and extruding when can generate vibration, and spacer pin 5 can limit the movement range of slide 2, prevent that amplitude is too big and left and right is shaken
It is dynamic.
The spherical diameter of sliding block 1 is 1m, and the diameter of slideway is 40m, and the rigidity of spring 3 is 12kN/m.In practical operation feelings
It under condition, if certain bridge spanning the sea 80m span freely-supported steel truss girder weighs 1800 tons, is lifted and is set up using crane barge, 4 playscripts with stage directions hair is needed when erection
Bright, 4 vibration absorbers are separately positioned on 4 corner points on girder steel ground.Sliding block 1 diameter 1m, slideway diameter 40m, 3 rigidity of spring
12kN/m, slideway radius 40m.
The present invention has the following advantages:
1. structure is simple, easy to process；
2. falling the minimum point that beam body when beam is in slideway automatically, guarantees that girder steel is accurately in place, there is automatic positioning function, mention
Height falls beam accuracy；
3. the buffer function of contact friction energy-dissipating of the sliding block with slide, spring is able to achieve energy consumption during falling beam, buffering
Effect, effectively improves steel girder erection efficiency.
The invention is not limited to above-mentioned preferred forms, and anyone should learn that is made under the inspiration of the present invention
Structure change, the technical schemes that are same or similar to the present invention are fallen within the scope of protection of the present invention.
Claims (5)
1. a kind of slideway type damper set up for bridge spanning the sea Simply-supported Steel Beams characterized by comprising
Support is fixed on top of bridge pier, and upper end is open, and inside is equipped with slide, passes through between the bottom surface of the slide and the support
Spring connection, two sides are connect by spacer pin with the support, and the top surface of the slide is equipped with the slideway for girder steel positioning, institute
It is arc-shaped for stating slideway；
Sliding block is fixed on steel beam bottom to be set up, and the bottom surface of the sliding block is spherical surface, is adapted to the radius of the slideway, with
The change in location of girder steel to be set up, with the ramps contact or disengaging.
2. the slideway type damper according to claim 1 set up for bridge spanning the sea Simply-supported Steel Beams, which is characterized in that institute
The radius for stating slideway is linear distance when falling beam between boom suspension centre and girder steel suspension centre.
3. the slideway type damper according to claim 1 set up for bridge spanning the sea Simply-supported Steel Beams, which is characterized in that institute
State spring be it is multiple, be evenly distributed on the bottom of the slide.
4. the slideway type damper according to claim 1 set up for bridge spanning the sea Simply-supported Steel Beams, which is characterized in that institute
The both ends for stating slide are equipped with link block, and the spacer pin is arranged between the link block and the support.
5. the slideway type damper according to claim 1 set up for bridge spanning the sea Simply-supported Steel Beams, which is characterized in that institute
The spherical diameter for stating sliding block is 1m, and the diameter of the slideway is 40m, and the rigidity of the spring is 12kN/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417855.9A CN109371826B (en) | 2018-11-26 | 2018-11-26 | Slide way type shock absorber for erecting simply-supported steel beam of sea-crossing bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417855.9A CN109371826B (en) | 2018-11-26 | 2018-11-26 | Slide way type shock absorber for erecting simply-supported steel beam of sea-crossing bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109371826A true CN109371826A (en) | 2019-02-22 |
| CN109371826B CN109371826B (en) | 2020-09-29 |
Family
ID=65383494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811417855.9A Active CN109371826B (en) | 2018-11-26 | 2018-11-26 | Slide way type shock absorber for erecting simply-supported steel beam of sea-crossing bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109371826B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681103A (en) * | 2020-12-23 | 2021-04-20 | 蒋友富 | Bottle gourd-shaped steel box girder convenient to construct and construction method thereof |
Citations (6)
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| JP2004308109A (en) * | 2003-04-01 | 2004-11-04 | Kaimon:Kk | Fixed load support member |
| KR20060075358A (en) * | 2004-12-28 | 2006-07-04 | 김성원 | Rolling pendulum bearing with low friction |
| CN201588304U (en) * | 2009-12-08 | 2010-09-22 | 河北理工大学 | Simple pendulum composite three-dimensional shock insulation support |
| CN206220260U (en) * | 2016-11-22 | 2017-06-06 | 山东科技大学 | A kind of Self-resetting three-dimensional damping energy dissipating support for building |
| KR101795642B1 (en) * | 2016-12-22 | 2017-11-08 | 주식회사 문창 | Structure Support Device |
| CN108729341A (en) * | 2018-09-05 | 2018-11-02 | 沈阳建筑大学 | A kind of limiting device having height difference bridge |
-
2018
- 2018-11-26 CN CN201811417855.9A patent/CN109371826B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004308109A (en) * | 2003-04-01 | 2004-11-04 | Kaimon:Kk | Fixed load support member |
| KR20060075358A (en) * | 2004-12-28 | 2006-07-04 | 김성원 | Rolling pendulum bearing with low friction |
| CN201588304U (en) * | 2009-12-08 | 2010-09-22 | 河北理工大学 | Simple pendulum composite three-dimensional shock insulation support |
| CN206220260U (en) * | 2016-11-22 | 2017-06-06 | 山东科技大学 | A kind of Self-resetting three-dimensional damping energy dissipating support for building |
| KR101795642B1 (en) * | 2016-12-22 | 2017-11-08 | 주식회사 문창 | Structure Support Device |
| CN108729341A (en) * | 2018-09-05 | 2018-11-02 | 沈阳建筑大学 | A kind of limiting device having height difference bridge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112681103A (en) * | 2020-12-23 | 2021-04-20 | 蒋友富 | Bottle gourd-shaped steel box girder convenient to construct and construction method thereof |
| CN112681103B (en) * | 2020-12-23 | 2022-11-18 | 湖南国创钢结构有限责任公司 | Bottle gourd-shaped steel box girder convenient to construct and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109371826B (en) | 2020-09-29 |
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